Mattermost up to 7.8.12/8.1.3 innerText/textContent cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Mattermost up to 7.8.12/8.1.3. It has been classified as problematic. The affected element is an unknown function. Performing a manipulation of the argument innerText/textContent results in cross site scripting. This vulnerability was named CVE-2023-35075. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Mattermost up to 7.8.12/8.1.3. This affects an unknown code block. The manipulation of the argument innerText/textContent with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

Mattermost fails to use  innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though. 

The weakness was presented 11/27/2023 by Harrison Healey. The advisory is shared at mattermost.com. This vulnerability is uniquely identified as CVE-2023-35075 since 11/20/2023. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading to version 7.8.13 or 8.1.4 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CNA Base Score: 3.1
CNA Vector (Mattermost, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mattermost 7.8.13/8.1.4

Timelineinfo

11/20/2023 🔍
11/27/2023 +7 days 🔍
11/27/2023 +0 days 🔍
12/16/2023 +19 days 🔍

Sourcesinfo

Advisory: mattermost.com
Researcher: Harrison Healey
Status: Confirmed

CVE: CVE-2023-35075 (🔍)
GCVE (CVE): GCVE-0-2023-35075
GCVE (VulDB): GCVE-100-246153

Entryinfo

Created: 11/27/2023 11:02
Updated: 12/16/2023 20:44
Changes: 11/27/2023 11:02 (49), 12/16/2023 20:44 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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